Abstract: An automatic dispenser for the sale/exchange of video cassettes/compact ds and similar. The products are housed on a rotary drum inside respective peripheral radial compartments arranged side by side in two concentric rings of the same diameter and occupying the same radial position. Drive means controlled by electronic control means provide for selectively rotating the drum by a given number of fractions of a turn equal to half the circumference of each compartment, so as to selectively position the compartments facing two withdrawal slots formed through a panel on the dispenser parallel to the axis of rotation of the drum, which slots are offset heightwise by an amount substantially equal to half the circumference of the compartments.